Improvement in slide-rests for lathes



2 Sheets-Sheet 2.

C; WALTER.

SLIDE RESTS FOR LATHES. No.176,102.

Patented Apr111,1876.

mwa/QV, y

N.PETERS. PHOTO-LrrHoGRAPHEH, WASHINGTON, D c.

To all whom tt may concern:

" of the rest is effected with a hand-lever, hereinafter more fully explained;

PATENT OFFICE.

CARL WALTER, or oiNcivNNiiTi, oHIo. 1

IMPRovEMENTiN SLIDE-RESTS F'oR LATHEs.

Specification forming part of Letters Patent Nc.- l 76, l 02. dated April 11, 1876; applicationY tiled Marcil 16, iste;

Be it known that I, CARL WALTER, a resi:-

' dent ot' the cityv ot' Cincinnati, in the county olf lHamilton and State of Ohio, have invented certain new and useful [improvements in Slide Rests ibr-Lathes,'ot' ,which the followingis a specification Thetirst part of my invention comprises a peculiar `combination of devices for reciprocating the slide-restv of a lathe transversely of the shears, the rest being arranged4 so :is to be operated with a screw when'a gradual and slow feed is required, while a rapid movemenit aS The second part of my invention comprises an instrumentality for shifting the slide-rest carriage longitudinally ot' the shears, the principal feature of this improvement being a hand-lever, whose rear end is pivoted to a shiftable fulcrum-clainp, which latteris capable of being secured at any desired position on one of the lathe-shears.4 This lever is coupled to the sliderest carriage by connecting-rods that can readily be detached, when it is desired to move said carriage by the feedscrew ofthe lathe.

1n the accompanying drawings,forming part of this specification, Figure l is a plan of my improved slide-rest, in condition for use with a screw. Fig. 2 is another plan, but showing the rest arranged to be opera-ted with a handlever. Fig. 3 is a vertical section of the rest at the line m oc. Fig. 4: is a transverse section at the line y y. Fig. 5 is a vertical section of the forward end of the rest at the line a z. Fig. 6 is an enlarged elevation of the forward portion of the rest. Fig. 7 is a plan ofthe devices for shifting the carriage longitudinally of the lathe, the slide-rest being removed from said carriage; and Fig. 8 is a side elevation of said devices, the lathe-shears being shown in section.

A A represent a portion of the shears or sides of alathe of any approved form. Adapted to be shifted longitudinally of these shears is a bed-plate, B, whose undercut guides b b confine to a rectilinear path the slide C, from which projects the tool-post D, the latter being provided with a customary set-screw, d, for retaining the tool securely in position. The

under side of this slide is provided with a longitudinal groove, c, within which is located a nut, E, which latter is secured to said slide either with-a shank, c, or otherwise.

'staples j or their equivalent devices.

K is the cap ot' the'box, which'cap isseciired with bolts, thuinb-screwsor hooks K,

' or any other devices that will allow the ready detachment of said cap.

The extreme forward end of bed-plate B is furnished with a recess, L, that is adapted to receive a collar, M, ot screw G, by which 'means any longitudinal shifting ot' said screw is prevented. N is -a hand-wheel or crank wherewith the screw is rotated.

Projecting vertically from bed-plateV B is a bracket, O, whose horizontal armo has pivoted to it a pair of links, P, that are connected to a lever, R, having a handle, if, and a downwardly-projecting stud, S. This stud is adapted to engage with either ot' the perforated lugs T T', that project horizontally from the toolpost D.

The bracket O is slotted at the lower end to receive a screw or bolt, U, wherewith said bracket is secured to the bed-plate ot' the rest.

Lugs Vor their equivalent devices may be employed for maintaining the bracket in a vertical position.

W is a dog, pivoted to bed-plate B at w, and provided with a screw, Q, whose inner end is adapted to hear against the rear end of plate B, and thereby force the dog so tightly against shear A as to prevent any shifting of the rest longitudinally ofthe shears.

The devices for shifting the hed-plate v'or carriage B longitudinally ot' the shears consist, essentially, of a hand-lever, l, fnlcruinclamp 2, and a pair of connecting-rods, 3 3', said lever being pivoted to the clamp at 4. 5

is a set-screw, wherewith the fulcrum-clamp 2 collar M is retained in its socket L by means of the box H"KWhich is maintained inline with bed-plate Biby'the hooksJ.` Byt'u-rningthe Wheel N either to the right or left the screw G causes the slide C to advance or re-l tract along the guidesb bi'iu theusualA mam A much time that would be consumed in operatner, the dog Q W serving to prevent any.' shifting of the slide transversely of shears A A.

This use of' the screw serves to impart a slow and gradual transversefeed of; the slide', but

when it is desiredl to'y move; the latter with i greater rapidity the following changes are ef- Y versely of' .the shears.,. Substantially as. herein described andi-set forth..

fected: The retaining devices K arerst. un slackened, so as to permit removal of capK, aiter'which hooks J aredisengaged from sta: ples j, andtheA box. H turned.A down to:the.po

sition shownin Figs.,2and 5., solas to..V disenplateB,l forv thepurposespecied.. n Y

3'. `The detachable, bracket. 0: U` V Vvand links.. 11",. for; permitting; the;l engagement of lefver Ribs; with.eithery of the; perforated lugs-T '1l/for theypurposedesignated;

slide C free to-be reei'procated. as. rapidly 'as gage thev collar AM from itsg'socket., L. The. bracket O o'svnow applied.tobedeplatezand secured iny position by the; devices-U. V', theV pin- S` of lever R being'- engaged` with eitherof the. perforatedlugs T '1"whichfactleavesthe may be desired. whenftheoperator. graspsthehandle r.

the slide.

.the fulcrum-clamp 2 being first secured to the `:shear Alv by set-.Screw 5.,'.andl the rods 3 connected to the ears 7. 'Thecarria-ge B C can now be shifted either to ther right or left by :simply grasping the handle of lever 1 and then throwing said lever in either direction, the dog W Q;being-rstdisengaged from shear A.

As the fulcrum can be clamped at any desired point onithe shear A', it is evident that by shifting said. ful'crumf the ylever 1 may be made eii'ective at any part ofthe lathe.

This rapid movement of the slide-rest carrage.l longitudinal-ly of the. lathe, will save ing said carriage by the usual feed-screw.

What I claim as new, and desire to secure by Letters Paten.t,is-

1.` A slide-rest, for. lathes, when adapted' to have either. aslow 0r. a rapid-movement `trans- 2... The-.combinationof".hinged box H' h J j andremovable cap K k, forv engagingthecollanM. of feed-.screw Gr with. the'iecess- L of bed- '.llhedog QW .pivotediatw either. tol-the front. or. rear end?. of hed-*plate .Bf For thc/object stated.,

`The bracket maybe; readily detached from j the bedfplatathe box closed up,.and thecoll lar engaged within itssocket,when itisagaiu ,l desired to employ the screw G for. oper-atingrk 5.. They comi!)ifnati'on. of lever` 1, shiftable fulcrum-clamp l2` 5,110.11; or rods 3 and'` attachments. 6- anditasandlfor the` purpose herein specified.

, @ARL WAIJIER.` Attest.;

D.. P; KENNEDY,

CHARLES SCHAMMEL. 

